Portable negative pressure apparatus



FIG. 1 is a front perspective view of a portable negative pressure apparatus with various features shown in broken lines.

FIG. 2 is a rear perspective view of the apparatus of FIG. 1 .

FIG. 3 is a front view of the apparatus of FIG. 1 .

FIG. 4 is a rear view of the apparatus of FIG. 1 .

FIG. 5 is a top view of the apparatus of FIG. 1 .

FIG. 6 is a bottom view of the apparatus of FIG. 1 .

FIG. 7 is a left side view of the apparatus of FIG. 1 ; and,

FIG. 8 is a right side view of the apparatus of FIG. 1 .

In the drawings, the dashed broken lines denote portions of the portable negative pressure apparatus that form no part of the claimed design. 

CLAIM The ornamental design for a portable negative pressure apparatus, as shown and described. 